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according to Campell Stokes, for independent recording of sunshine duration in northern and southern equatorial zones from 0 to 40° and 25 to 60° respectively. The instrument consists of corrosion-resistant gunmetal brass, hammer dimple enamel finish, with high-grade polished glass ball. Sun radiation onto the glass ball effects focus on the opposite side. Due to high temperature at focus center, the sun position is burnt unto heat-sensitive paper with time graduation. A circular bubble is located on the base plate allowing exact adjustment of the instrument. |
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| Measures | ||||
| Instrument | approx. 205 x 185 x 245 mm | |||
| Glass ball diameter | 96 mm | |||
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| Weight | 5 kg | |||
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Accessories |
1 set of recording strips (280 pieces for summer and winter and 100 pieces for spring/fall) |
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| Order no. | ||||
| 7.004 | Sunshine Autograph 0-40° | |||
| 7.004/2 | Spare recording strips (1 set has 380 pieces for 0-40°) | |||
| 7.004/3 | Sunshine Autograph 25-60° | |||
| 7.004/4 | Spare recording strips (1 set has 380 pieces for 25-60°) | |||
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for recording radiation intensity and sunshine duration. Black/white enameled bimetals serve as temperature-compensated measuring elements. Deflections of these bimetals are recorded on the drum through the pointer mechanism. The case is made of wether-resistant, white coated aluminum die casting and removable upper part with Macrolon panoramic hood. A glass dome is built into the upper part covering the measuring elements below. |
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Measuring range |
0-1300 W/square meter |
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Spectral range |
0.3 to 3 µm |
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Writing width |
50 mm |
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| Drum revolution | 7 days | |||
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| Measures | 280 x 138 x 240 mm | |||
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| Weight | 2.8 kg | |||
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Accessories |
1 set of spare recording strips (100 sheets) |
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| Order no. | ||||
| 7.007 | Actinograph | |||
| 7.007/AC8 | Spare recording strips (100 sheets, 0-8 Joule) | |||
| 7.007/AC2 | Spare recording strips (100 sheets, 0-2 calories) | |||
| 7.007/3 | 1 spare fiber pen | |||
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